Answer:
kklfkfhujnvhjnhiehiejnei
Step-by-step explanation:
Simplify: -4a^-(6a-2)+3(a^-1) With the ^ being (2)...
Answer: -a^ -6a -1
The ^ = 2
Answer:
1 hour 56 minutes
Step-by-step explanation:
Given :
Time taken by Lucy = 3 hours 15 minutes = 3.25 hours
Time taken by brother = 4 hours 45 minutes = 4.75 hours
Rate = 1 / time taken
Lucy's rate = 1 / 3.25
Brother's rate = 1 / 4.75
Combined rate = Lucy's rate + brother's rate
Combined rate = 1/3.25 + 1/4.75
Combined rate = 0.5182186
Time taken if they work together = 1/ combined rate
= 1 / 0.5182186
= 1.9296 hours
= 1 hour (0.9296 * 60) minutes
= 1 hour 56 minutes (approximately)
I guess your question is
<span>Sean read 15 of a book in 112 hours. How long will it take Sean to read 12 of this book?
15 books ........112 hours
12 books..........? hours
12 x 112 / 15 = 89.6 hours.
</span>
Answer:
A) $1555
Step-by-step explanation:
The formula for percentages is :
To work this out you would first need to find 16 percent of $2100. You can do this by first dividing the percentage by 100, this gives you 0.16. This is because percentages are out of 100.
The next step is to multiply 0.16 by 2100, this gives you 336. This is because by multiplying 16% as a decimal by the amount of 2100 we are working out 16% of 2100.
The next step is add up the value of all of the deductions. You can do this by adding 336 by 89 by 85 and 35, this gives you 545.
The final step is to minus the total deductions of 545 from the total amount of 2100, this gives you $1555.
1) Divide 16 by 100.

2) Multiply 0.16 by 2100.

3) Add 336 and 89 and 85 and 35.

4) Minus 545 from 2100.